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Aluminum oxide (Al2O3)
Alumina or aluminum oxide is a chemical compound of aluminium and oxygen with the chemical formula Al2O3. Is the most well-known oxide ceramic material.
Aluminum oxide is an electrical insulator and has a relatively high thermal conductivity (30 Wm−1K−1). Due to its relatively high hardness, it is used as an abrasive and a component in cutting tools.
This ceramic is widely used in the Medical industry, Military and protective equipment, Electrical and electronics industry, Gem industry, Industrial applications, etc.
Composition
| Element | Al2O3 | SiO2 | MgO | Na2O | Fe2O3 | CaO | TiO2 | B2O3 |
|---|---|---|---|---|---|---|---|---|
| Content | 99,7% | 0,05% | 0,03% | 0,15% | 0,02% | 0,03% | < 0,01% | < 0,2% |
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